Washington Initiative 502 was passed in November of 2012. The initiative
licenses and regulates marijuana production, distribution, and possession for
persons over the age of 21. Although limited amounts of marijuana are legal for
those over 21 years of age in the state of Washington, those under 21 can be
charged with Minor in Possession.

Youth brain development continues into ones 20s. Research has shown that marijuana has negative effects on attention, memory, and learning. These effects can last for days or weeks after the immediate effects of the drug wear off.

Information on Drugs and Drug Abuse:
For information about other commonly abused drugs: brief overviews, street and clinical names, the effects of the drug on the brain and body, trends, and other related publications, see:
National Institutes of Health.